<?php
/**
 * Akeeba Engine
 * The modular PHP5 site backup engine
 * @copyright Copyright (c)2009-2012 Nicholas K. Dionysopoulos
 * @license GNU GPL version 3 or, at your option, any later version
 * @package akeebaengine
 *
 */

// Protection against direct access
defined('AKEEBAENGINE') or die();

class AEDumpNative extends AEAbstractPart
{
	/** @var AEAbstractDump */
	private $_engine = null;
	
	/**
	 * Implements the constructor of the class
	 *
	 * @return AEDumpNative
	 */
	public function __construct()
	{
		parent::__construct();
		AEUtilLogger::WriteLog(_AE_LOG_DEBUG, __CLASS__." :: New instance");
	}
	
	protected function _prepare() {
		AEUtilLogger::WriteLog(_AE_LOG_DEBUG, __CLASS__." :: Processing parameters");
		
		// Get the DB connection parameters
		if( is_array($this->_parametersArray) ) {
			$driver = array_key_exists('driver', $this->_parametersArray) ? $this->_parametersArray['driver'] : 'mysql';
			$host = array_key_exists('host', $this->_parametersArray) ? $this->_parametersArray['host'] : '';
			$port = array_key_exists('port', $this->_parametersArray) ? $this->_parametersArray['port'] : '';
			$username = array_key_exists('username', $this->_parametersArray) ? $this->_parametersArray['username'] : '';
			$username = array_key_exists('user', $this->_parametersArray) ? $this->_parametersArray['user'] : $username;
			$password = array_key_exists('password', $this->_parametersArray) ? $this->_parametersArray['password'] : '';
			$database = array_key_exists('database', $this->_parametersArray) ? $this->_parametersArray['database'] : '';
			$prefix = array_key_exists('prefix', $this->_parametersArray) ? $this->_parametersArray['prefix'] : '';
		}
		
		$options	= array (
			'driver' => $driver,
			'host' => $host . ($port != '' ? ':' . $port : ''),
			'user' => $username,
			'password' => $password,
			'database' => $database,
			'prefix' => is_null($prefix) ? '' : $prefix
		);
		$db = AEFactory::getDatabase($options);
		
		$driverType = $db->getDriverType();
		$className = 'AEDumpNative'.ucfirst($driverType);
		
		AEUtilLogger::WriteLog(_AE_LOG_DEBUG, __CLASS__." :: Instanciating new native database dump engine $className");
		if(!class_exists($className, true)) {
			$this->setState('error', 'Akeeba Engine does not have a native dump engine for '.$driverType.' databases');
		} else {
			$this->_engine = new $className;
			$this->_engine->setup($this->_parametersArray);
			$this->_engine->callStage('_prepare');
			$this->setState($this->_engine->getState(), $this->_engine->getError());
		}
	}
	
	protected function _finalize()
	{
		$this->_engine->callStage('_finalize');
		$this->setState($this->_engine->getState(), $this->_engine->getError());
	}

	protected function _run()
	{
		$this->_engine->callStage('_run');
		$this->setState($this->_engine->getState(), $this->_engine->getError());
		$this->partNumber = $this->_engine->partNumber;
	}
}